Sewing-machine attachment



' (No Model.)

L. H. JOHNSON & N. REYNOLDS.

' SEWING MACHINE ATTACHMENT.

No. 249,768. Patented Nov. 22,1881.

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UNITED STATES PATENT nron...

SEWING-MACHINE ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 249,768, dated November 22, 1881.

Application filed October 18, 1880. (No model.)

To all whom it may concern:

Be it. known that we, LAURIN H. JOHNSON, of Detroit, IVayne county, Michigan, and NOR- MAN REYNoLns, a citizen of Canada, temporarily sojourning in the city of Detroit, aforesaid, have invented certain Improvements in Sewing-Machine Attachments, of which the following is a specification.

The invention relates to a new and useful attachment to the presser-foot of a sewing-ma chine, or to a supplementary foot attached thereto, such as -is sometimes employed as an attachment by means of which to secure tuckers, hemmers, and like devices to the foot of the machine.

The invention consists in a spring secured to such presser-foot, and adapted, in the upward movement of the needle-bar c irrying the needle, to prevent the latter from lifting the material as such needle is withdrawn. The spring will also be found advantageous in sewing over seams, hems, or other like obstructions.

Figure l is a perspective view of a presserfoot with our spring attachment. Fig. 2 is a modification; and Fig.3, a detail section, showing the foot resting on three thicknesses of material.

In the accompanying drawings, which form a part of this specification, A represents a presser-t'oot of a sewing-machine, to the toe of which is secured the leaf-spring B. This spring is made with an arm,a, projecting at right angles to its body, and by means of this arm and a suitable bolt or rivet the spring is secured to the toe of the foot, as shown. The free end of the spring is slotted, as shown, to allow the needle a free passage, and, as the bifurcated end passes beyond the needle, the springcan be made longer, and hence more efficient than if shorter, to terminate outside the needlepath.

This device will be found peculiarly adapted to machines in which the wheel-feed is employed, and it will be seen that, if desired, the spring may be attached to the heel of the foot, substantiallly as shown in Fig. 2, without departing from the spirit of our invention.

In Fig. 2 we have shown the foot provided with a recess in which the attached end of the spring is secured, which prevents any sidewise motion; and in Fig. 1 there is an offset on the toe of the foot which serves the same purpose. This form of [bot will be found to be a great improvement over the ordinary forked or divided foot, inasmuch as in hemming the foot proper will rest on the single thickness of cloth, the inner side of the forked spring will rest on three thicknesses, and the outer side on two thicknesses, and each part of the foot will conform to the thickness of the material passing under it.

We are aware that itis not new to provide a presser-foot with a supplementary piece hinged to the presser-bar and held down by a spring; but this supplementary piece is neither forked to receive the needle between it, nor is it capable of adapting itself, as ours is, to three different thicknesses passing under its different parts at the same time, as in hemming.

In Fig. 3 of the drawings, A represents the foot proper, resting on a single thickness of material; b, the inner side of the spring, resting on three thicknesses; and c, the outer side of the spring, resting on two thicknesses.

What we claim as our invention is 1. In combination with the presser-foot A of asewing-machine, a spring, B, connected at one end to the presser-foot and having its free end bifurcated to embrace the needle without obstructing its passage, substantially as and for the purpose described.

2. A spring, B, having one end bifurcated to embrace the needle, and provided with an arm, a, at right angles to its body, in combin ation with the presser-foot A, substantially as and for the purpose specified.

3. A spring, B, having a bifurcated free end and an arm, a, in combination with a presserfoot having an offset against which the arm a is fastened, substantially as and for the purpose described.

LAURIN H. JOHNSON. NORMAN REYNOLDS. 

